1. Yuav ua li cas kho cov txheej txheem kho cua sov ntawm alloy steel kav raws li kev pabcuam?
Kev pab kub kub: Li qub + tempering (xws li P91 Hlau) yog siv los ua qhov ruaj khov metensite thiab txhim kho lub zog txias.
Ib puag ncig qhov kub tsawg: quenching thiab tempering (quenching + kub}}}}} {degree cuam tshuam nyuaj (xws li TTM A333 GR.6).
Corrosion Kuj yuav tsum muaj: Austenitic Stainless hlau yuav tsum tau kho cov teeb meem kev kho mob (1050 degree dej quenching) kom tshem tawm cov kev tiv thaiv ntawm carbide nag lossis daus.
Qhov tshwj xeeb ntawm cov hlau: Chav hlau Stainless (2205) yuav tsum tswj hwm ob-theem piv (\/ ≈50%), uas tau ua tiav los ntawm kev ntsuas kub kom meej.
2. Dab tsi yog cov kev sib tw ua haujlwm ntawm alloy steel kav hauv hydrogen tiv thaiv kev thauj mus los?
Hydrogenlement embrittlement:
Hydrogen atoms nkag mus rau hauv thaj tsam nplej nkag mus rau hauv cov qoob loo nplej thiab ua rau brittle lov, tshwj xeeb yog cuam tshuam rau cov hlau siab (xws li x80).
Kev daws: Siv cov hlau ntshiab (S \/ P<50ppm) + austenitic stainless steel lining.
Yuav tsum tau sealing:
Hydrogen molecules muaj cov permeability muaj zog, xav tau laser vuam lossis cov ntawv tshwj xeeb xov sib txuas.
Cov Khoom Siv Tawm:
Titanium alloy Composite kav thiab iav fiber ntxiv ntxiv epoxy resin kav yog raug sim.
3. Yuav ua li cas thiaj li txiav txim siab qhov zoo ntawm alloy steel yeeb nkab los ntawm kev kuaj tsis yog (ndt)? Kev sib piv ntawm qhov zoo thiab qhov tsis zoo ntawm ntau txoj hauv kev
Siv tau cov txheej txheem kuaj pom
Ultrasonic (urs) sab hauv cov kab nrib pleb thiab kev ua tsis tiav yog qhov tseeb, portable thiab xav tau coupling cov neeg sawv cev, thiab muaj cov dej num loj
Xov tooj cua (RT) porosity thiab slic inclusions yog intuitively kev xav, hluav taws xob phom sij tuaj yeem yog cov kav dej archiving, thiab tuab-walled pipes yog sijhawm siv sijhawm
Eddy tam sim no (li) cov kab nrib pleb yog nrawm nrawm, tsis muaj kev sib cuag tsuas yog, tsuas yog cov ntaub ntawv sau cia muaj tsawg, thiab qhov tob yog txwv
Sib Nqus Hmoov (MT) NTO \/ NTA-NTA DAIRTS
Kev Xyaum Tswj Kev Lag Luam: Nuclear zog Pipelines feem ntau yuav tsum muaj om + rt dua.
4. Yuav tsum muaj cov khoom tshwj xeeb rau cov roj alloy steel rau cov roj sib sib zog nqus thiab roj av?
Cov cim tseem ceeb:
Sab nraud siab kuj: Lub phab ntsa tuab tsim tsim nyog yuav tsum tau tiv thaiv cov dej tob ntawm 3000m (30MPA hydrostatic siab).
H₂s corrosion Kuj: xaiv cov steel duplex (2507) lossis carbon hlau + corrosion-resistant alloy.
Kev Ua Haujlwm Qoob loo: Xav txog Vortex-ua rau kev co ntawm cov dej hiav txwv kom tsis txhob muaj kev sim rog.
Cov Ntaub Ntawv Raug:
MAIN YEEB: API 5L X65MO (txhim kho cov yeeb nkab sulfur-resistant yeeb nkab).
Connectors: Inconel 625 Flange.
Hloov tshiab: Tsis yog xim hlau composite kav (xws li fireoplastics) yog raug sim.
5. Cov txheej txheem sib txawv thiab cov kev kawm digital nyob hauv cov yeeb nkab steel
Cov txheej txheem ib txwm:
Phab ntsa tuab ntsuas ntsuas: Ultrasonic tsau kev soj ntsuam ntawm tus nqi corrosion.
Meballographic Kev Tshawb Xyuas: Saib cov koog ntoo uas muaj cov kab ke (cov raj kub-kub) lossis hydrogen-inducts nrib pleb.
Kuaj Hardness: Txheeb xyuas cov lej ntawm cov laus laus (xws li npau taws embrittlement).
Cov Tshuab Siv Digital:
Ntse raj dej: embedded fiber ntau optic sensors los saib xyuas hom \/ kub nyob rau lub sijhawm tiag tiag.
Cov ntaub ntawv twv ua ntej loj: sib txuas keeb kwm kev kho keeb kwm corrosion + Ai Algorithm los twv seb lub neej tseem tshuav.
Digital ntxaib: Tsim kom muaj peb-seem qauv ntawm cov raj xa dej mus rau simulate kev cuam tshuam kev ntxhov siab.
Cov ntaub ntawv: Ib lub petrochemical Enterprise Siv Acoustic Emission Tshuaj xyuas cov kab ke ntawm kev ntxhov siab corrosion ntawm P11 steel kav peb lub hlis ua ntej.
